Appearing in "The Origin of Professor X"
- Professor X (Charles Xavier) (Appears in flashback and main story)
- Dr. Kurt Marko - (Only in flashback), (First appearance), (Death)
- Sharon Xavier-Marko - (Only in flashback), (First appearance), (Death)
- Juggernaut (Cain Marko) (First appearance)
- Unnamed X-Mansion staff - (Only in flashback)
- Unnamed clergyman - (Appears in flashback and main story)
- Unnamed high school students - (Only in flashback)
- New Mexico (Mentioned)
- Alamogordo (Mentioned) (First appearance)
- Korea - (Only in flashback)
- Temple of Cyttorak - (Only in flashback), (First appearance)
Synopsis for "The Origin of Professor X"
- Synopsis not yet written.
- Xavier claims that he was able to put up a mental shield to protect him from a car crash caused by Cain Marko. As Xavier is not a telekinetic, this would be impossible.
- Xavier and Cain enlisted in the military and take part in the Korean War. Due to Marvel's sliding time scale, this historical reference is to be considered topical. Recent editions of the Marvel Handbook state that the two participated in a "military conflict" in Korea, and no longer specify it was the Korean War of the 1950's.
- Stupifying Story by: Stan Lee
- Spectacular Layouts by: Jack Kirby
- Slam-Bang Pencilling by: Alex Toth
- Sensational Inking by: Vince Colletta
- The Usual Lettering by: Artie Simek
- Kibitzing by: The Whole Blamed Bullpen!
- references:X-Men #9
- This issue is reprinted in many other comics and books, see references for more info.
- Professor X's full name 'Charles Xavier' is revealed in this issue. This issue also reveals that his father's name was Brian, and his mother was named Sharon. Both died during Xavier's childhood.
- The back-story of Professor X's flashbacks of Alamagordo, New Mexico in this story will be revisited in X-Men Vol 2 #12 & 13
- The name of the atomic test site city is misspelled as "Alamagordo" instead of the correct name "Alamogordo".
- All of the X-Men learn of the existence of Cerebro.
- Cyttorak had previously been mentioned in Doctor Strange stories.
- This Comic Book was referenced in Marvel: Avengers Alliance and is one of the Comic Book Covers required in order to recruit Juggernaut in the game.
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- Images from X-Men Vol 1 12